Leviticus 25
32 Ref "'Nevertheless the cities of the Levites, the houses in the cities of their possession, the Levites may redeem at any time.
33 Ref The Levites may redeem the house that was sold, and the city of his possession, and it shall be released in the Jubilee; for the houses of the cities of the Levites are their possession among the children of Israel.
34 Ref But the field of the suburbs of their cities may not be sold; for it is their perpetual possession.